const net = require("net")
const chatServer = net.createServer()
const clientList = []
chatServer.on("connection", client => {
  client.write("Hi!\n")
  clientList.push(client)
  client.on("data", data => {
    console.log("receive:", data.toString())
    clientList.forEach(v => {
      v.write(data)
    })
  })
})
chatServer.listen(9000)
